DC tac hook up..?..

My friend is selling me a NOS one of those in the box....it’s going in my display case so it can collect dust with my other Dc stuff lol....too bad somebody put tape on the box...I’ll try to fix that up

View attachment 1715454970
When I Googled it an old ad from 2008 here on the Forum show a guy selling one for $50... I thought I seen one on eBay for a couple hundred a few years ago.. but we're talking everything brand new in the box ready to operate.. never used.. if I had everything to go with it I would put it in my car and use it. I've talked about it here on the forum before and there are members that have them connected in their car...